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November 16, 2013


Biofloc Supplementation of Juvenile Feeds


From Abstract: In this study, a 60-day trial was conducted to determine the effect of dietary biofloc supplementation on the growth and digestive enzyme activities in Penaeus monodon juveniles.  Graded levels of dried biofloc were included in diets at the rate of 0%, 4%, 8% and 12%.  The dried biofloc contained approximately 24% protein.  A fatty acid profile of the biofloc revealed palmitic acid (46.54%), cis-Vaccenic acid (15.37%), linoleic acid (10.67%) and oleic acid (9.19%) as the major fatty acids.


At the end of the study, juveniles fed the 4% and 8% biofloc diets had significantly higher body weights, 13.9% and 16.9%, respectively, than controls.  Juveniles fed the 4% biofloc had significantly higher feed conversion and protein efficiency ratios than controls.  They also had significantly higher increases in hepatopancreas digestive enzyme activities for amylase, cellulase, lipase and protease than controls.  Juveniles fed the 12% biofloc diet did not differ significantly on most of the growth performance parameters and digestive enzyme activities, compared to controls.


Source: Aquaculture.  Abstract: Effect of Dietary Supplementation of Biofloc on Growth Performance and Digestive Enzyme Activities in Penaeus Monodon.  P.S. Shyne Anand (email, Kakdwip Research Centre, Central Institute of Brackishwater Aquaculture, Kakdwip, South 24 Parganas, West Bengal PIN-743 347, India), M.P.S. Kohli, Sujeet Kumar, J.K. Sundaray, S. Dam Roy, G. Venkateshwarlu, Archana Sinha and G.H. Pailan.  Volumes 418-419, Pages 108–115, January 2014.

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